14-4
SERVICING
SM CKDDCI 2-A.3 GB
14.1.9
Removing Refrigeration parts
Refrigeation parts: Expansion valve, Reversing valve, high pressure switch, etc.
1. Remove the refrigerant from the unit by a pumping machine via the 2 valves.
Note: open the valves gradually and leave them only partially open for as long as the refrigerant
exerts from the unit. Do not open the valves fully as not to loose any oil.
2. Remove the service front panel according to
14.1.1
.
3. Check to ensure that LEDs and display board are OFF.
4. Remove the part connector from the main board.
5. Remove the part wires from the cable holders along the electronics box and or the partition.
6. Remove the part from its pipes using burner
.
14.1.10 Removing
Compressor
1. Remove the refrigerant from the unit by a pumping machine via the 2 valves.
Note: open the valves gradually and leave them only partially open for as long as the refrigerant
exerts from the unit. Do not open the valves fully as not to loose any oil.
2. Remove the service front panel according to
4.1.1
.
3. Remove the side and top panels according to
14.1.2
,
14.1.3.
4. Check to ensure that LEDs and display board are OFF.
5. Take out the insulation surrounding the compressor and the cover.
6. Remove the compressor electrical cover. Use flat screw driver if required.
7. Remove the compressor wires from the terminals.
8. Remove the compressor wires from the cable holders along the partition and secure the wire
on the top of the unit to avoid its burning by the burner.
9. Disconnect the suction pipe from the compressor.
10. Disconnect the discharge pipe from the compressor.
Remove the four nuts fixing the compressor and remove the compressor by lifting.
NOTES for re-assembling new compressor:
1. To prevent contamination of the refrigerant with water or foreign particles, do not expose open
pipes to atmosphere for long periods. If necessary, seal pipe ends using caps or tape.
2. Remove the caps for the new compressor just before replacing the compressor. Seal suction
and discharge pipe using tape when mounting to prevent the foreign particles entering the
compressor.
Check to ensure each wire color goes to correct compressor terminal. If wrongly connected, the
compressor may fail due to reverse rotation.
